Is CVE-2011-4362 actively exploited?

CVE-2011-4362 has no public evidence of in-the-wild exploitation as of 2025-04-11.

What is the CVSS score for CVE-2011-4362?

CVE-2011-4362 has a CVSS score of 5 (UNKNOWN severity). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P.

How do I patch CVE-2011-4362?

Patch guidance is available from lighttpd security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2011-4362.

CVE-2011-4362 - remediation guidance & executive summary

Q: Which products are affected by CVE-2011-4362?

5 products: lighttpd lighttpd, lighttpd lighttpd, debian debian linux, debian debian linux, debian debian linux.

Description

Integer signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.

CVSS Metrics

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector: network
Access Cmplx: low
Auth: none
Confidentiality: none
Integrity: none
Availability: partial
Weaknesses: NVD-CWE-Other

Metadata

Primary Vendor: LIGHTTPD
Published: 12/24/2011
Last Modified: 4/11/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

lighttpd : lighttpdlighttpd : lighttpddebian : debian_linuxdebian : debian_linuxdebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD